/Engine/Source/Runtime/SlateCore/Public/Widgets/SWindow.h
Utility for animating the window size.
struct FMorpher
bool:  1
bIsActive
True if this morph is currently active
bool:  1
bIsAnimatingWindowSize
True if we're morphing size as well as position. False if we're just morphing position
FCurveSequence
Sequence
Animation sequence to hold on to the Handle
FSlateRect
StartingMorphShape
Initial size of the window (i.e. at the start of animation)
float
StartingOpacity
Initial window opacity
FSlateRect
TargetMorphShape
Desired size of the window (i.e. at the end of the animation)
float
TargetOpacity
Desired opacity of the window